Finding the Fourth Proportional to 3,459,730,806.20, 5,190,161,680.20 and 1,129,991,439.80
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Solution
The fourth proportional to 3,459,730,806.20, 5,190,161,680.20 and 1,129,991,439.80 is: 1,695,171,849.58
Step by Step Solution
- Step 1: Write the proportion equation
3,459,730,806.20 : 5,190,161,680.20 = 1,129,991,439.80 : x - Step 2: Convert to fraction form
3,459,730,806.20/5,190,161,680.20 = 1,129,991,439.80/x - Step 3: Cross multiply
3,459,730,806.20x = 5,190,161,680.20 × 1,129,991,439.80 - Step 4: Simplify right side
3,459,730,806.20x = 5,864,838,269,803,984,896 - Step 5: Solve for x
x = 5,864,838,269,803,984,896/3,459,730,806.20 - Step 6: Final answer
x = 1,695,171,849.58
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.